阳极
过电位
水溶液
成核
电偶阳极
材料科学
锌
阴极
化学工程
金属
电化学
无机化学
化学
电极
冶金
阴极保护
有机化学
物理化学
工程类
作者
Jianbo Li,Bin He,Yi Zhang,Zexiao Cheng,Lixia Yuan,Yunhui Huang,Zhen Li
出处
期刊:Small
[Wiley]
日期:2022-03-30
卷期号:18 (18)
被引量:19
标识
DOI:10.1002/smll.202200567
摘要
Aqueous zinc (Zn) metal batteries have been regarded as the most promising aqueous batteries due to their low redox potential, high theoretical capacity, and abundant Zn resources. Unfortunately, Zn dendrite growth and serious side reactions drastically curtail the cycle life, severely affecting their large-scale application. Herein, a multifunctional ordered Zn-aminotrimethylene phosphonic acid (Zn-ATMP) film is in situ modified on the surface of metal Zn via a facile etching process. The modified layer can not only retard the side reactions and suppress the corrosion rate, but also lower the Zn nucleation overpotential and accelerate diffusion and homogenize deposition of Zn2+ due to the strong Zn affinity. Consequently, the as-prepared Zn-ATMP@Zn anode in the symmetric cell enables long-term lifespan (over 1000 h) at 10.0 mA cm-2 with a high areal capacity of 5 mAh cm-2 . Furthermore, when assembled with a SeS2 -based cathode, a long lifespan for over 280 cycles at 2 C can be achieved for the aqueous Zn-SeS2 battery. This work provides a reliable strategy for constructing stabilized Zn anode and accelerating the development of an aqueous energy storage system.
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